/*
 * main.c
 *
 * Created: Mon Nov 08 2021 14:06:53
 *  Author Chris
 */

// ============================================================================================
// Includes
#include <stdio.h>

#include "pico/stdlib.h"

#include "I2C_Master.h"
#include "UI_Control.h"
#include "Rotary_Encoder.h"

#include "Display.h"
#include "Display_SPI.h"
#include "Display_Shapes.h"
#include "Screens.h"

#include "USB_Serial.h"


// ============================================================================================
// Defines
#define LEDG_PIN 			12
#define LEDG_CONFIG      	gpio_init(LEDG_PIN); gpio_set_dir(LEDG_PIN, GPIO_OUT)
#define LEDG_ON 			gpio_put(LEDG_PIN, 0)
#define LEDG_OFF 			gpio_put(LEDG_PIN, 1)
#define LEDG_TOGGLE 		gpio_put(LEDG_PIN, !gpio_get(LEDG_PIN))
#define LEDG_ANIMATION_1	LEDG_ON; sleep_ms(100); LEDG_OFF; sleep_ms(100);
#define LEDG_ANIMATION_3	LEDG_ANIMATION_1; LEDG_ANIMATION_1; LEDG_ANIMATION_1

#define LEDR_PIN 			11
#define LEDR_CONFIG      	gpio_init(LEDR_PIN); gpio_set_dir(LEDR_PIN, GPIO_OUT)
#define LEDR_ON 			gpio_put(LEDR_PIN, 0)
#define LEDR_OFF 			gpio_put(LEDR_PIN, 1)
#define LEDR_TOGGLE 		gpio_put(LEDR_PIN, !gpio_get(LEDR_PIN))

#define TRIGGER_PIN			18
#define TRIGGER_CONFIG      gpio_init(TRIGGER_PIN); gpio_set_dir(TRIGGER_PIN, GPIO_OUT)
#define TRIGGER_ON 			gpio_put(TRIGGER_PIN, 1)
#define TRIGGER_OFF 		gpio_put(TRIGGER_PIN, 0)


// ============================================================================================
// Variables
volatile bool _Timer_Fired = false;


// ============================================================================================
// Function Declarations
void Check_For_Serial_Input(void);


/*******************************************************************
	Interrupt Service Routines
*******************************************************************/
bool ISR_Repeating_Timer(struct repeating_timer *t)
{
	LEDG_TOGGLE;
	_Timer_Fired = true;
    return true;
}


/*******************************************************************
	Main Routine
*******************************************************************/
int main(void)
{
	// LED			=================================================
	LEDG_CONFIG;
	LEDR_CONFIG;	LEDR_OFF;
	LEDG_ANIMATION_3;

	// Trigger		=================================================
	TRIGGER_CONFIG;
	TRIGGER_OFF;
	
	// USB Serial	=================================================
	USB_Serial_Init();
	
	// Rotary Encoder	=============================================
	Rotary_Encoder_Init();

	// I2C Master		=============================================
	I2CM_Init(false);

	// UI Control	=================================================
	UI_Control_Init();

	// Display 		=================================================
	Display_Init(DISPLAY_COLOR_BLACK, true, false);
	// Screen_Setup_Loading();
	Screen_Setup_Menu_Main(TRANSITION_NONE, TRANSITION_NONE, LINEAR, 0, false, 0);
	
	// Repeating Timer	=============================================
	struct repeating_timer Timer;
	add_repeating_timer_ms(40, ISR_Repeating_Timer, NULL, &Timer);

	
    while (1)
	{
		if (_Timer_Fired == true)
		{
			_Timer_Fired = false;

			Display_Send_Buffer();
			Display_Inc_Frame_Counter();

			Display_Screen_Transition_Tick();
			_Screen_Tick();

			UI_Control_Acceleration_Update(CURRENT_TIME_ms);
		}

		// Add functions here to execute during the DMA Transfer
		if(Display_SPI_DMA_Transfer_Ongoing())
		{
					
		}

		if(Display_Send_Buffer_Completed())
		{	
			TRIGGER_ON;
			Display_Render_Objects();
			TRIGGER_OFF;
		}
		else
		{
        	Check_For_Serial_Input();

			if(Rotary_Encoder_Rotation_CW_Occurred()) {
				Display_Action_CW();
			}

			if(Rotary_Encoder_Rotation_CCW_Occurred()) {
				Display_Action_CCW();
			}

			if(Rotary_Encoder_Switch_Press_Occurred()) {
				Display_Action_SW();
			}
		}	
    }
}

void Check_For_Serial_Input(void)
{
	while(USB_Serial_Available())
	{
		uint8_t USB_Data = USB_Serial_Get_Byte();
		switch(USB_Data)
		{
			case 'a':
				USB_SERIAL_SEND_STRING("SPI Baudrate: ");
				USB_Serial_Send_Int_Dec(Display_SPI_Get_Baudrate(), 10);
				USB_SERIAL_SEND_TERMINATOR();
				break;

			default:
				USB_SERIAL_SEND_STRING("Unknown Command: ");
				USB_Serial_Put_Char(USB_Data);
				USB_SERIAL_SEND_STRING(" (");
				USB_Serial_Send_Int_Hex(USB_Data, 2, true);
				USB_SERIAL_SEND_STRING(")");
				USB_SERIAL_SEND_TERMINATOR();
				break;
		}
	}
}